Wifi Music Box OpenSource Project

Have you ever heard about Sonos Sound System? This project aims to build a wifi sound box adapter which play out the streamming music using PCM2704 and TPLink WiFi Router such as TL-MR3020 or TL-MR3040 with USB support.

Hardware

1. TPLink Router TL-MR3020 (http://www.tp-link.com/iq/products/details/cat-14_TL-MR3020.html)
2. USB to Audio Converter (http://www.ebay.com/itm/PCM2704-USB-DAC-to-S-PDIF-Sound-Card-Decoder-Board-/191168663297)

Firmware

1. Openwrt SysUpgrade Firmware for TL-MR3020 which is built to support USB 1.1, Sound Module and MadPlay only (4MB Flash Memory Size). You can find the INSTRUCTION of HOWTO flashing OpenWRT by this link https://wiki.openwrt.org/doc/howto/generic.flashing
2. Configure uhttpd web server with lua support to be able to expose REST API out of the box to the mobile application.

After flashing TL-MR3040 by OpenWRT firmware, SSH into the system and modify the uhttpd configuration as follows:

• Open file with VIM editor

	root@OpenWrt:~# vi /etc/config/uhttpd

• Update the configuration with the following lines

	option lua_prefix       /api
	option lua_handler      /www/api/main.lua

• Copy the files from uhttpd/ into /www/api/ of the TL-MR3020 system.

	$ scp uhttpd/* root@OpenWRT:/www/api/

• Restart the uhttpd server

	root@OpenWrt:~# /etc/init.d/uhttpd restart to apply the configuration

Usage

You can find the MP3 streamming server source from http://dir.xiph.org/by_format/MP3

	root@OpenWrt:~# wget -qO- http://198.50.250.195:7064/RADIOSATELLITE | madplay - -v --tty-control

Or play a MP3 stream through REST API interface

http://your_openwrt_host/api/play?url=http://198.50.250.195:7064/RADIOSATELLITE

If you can make a small application that can retrieve a MP3 stream from https://soundcloud.com/, that would be great for you to build a real life sound system likes Sonos one. I love this way!!!